How do you solve the system #3x-7=-6# and #x+2y=11# by graphing?

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Answer 1 · 2016-05-03T14:22:08

#x=5#
#y=3#

From the given equations

#3x-7y=-6" "#first equation
#x+2y=11" "#second equation

#x=11-2y" "#this is from the second equation. Use this is the first equation

#3x-7y=-6" "#first equation

#3(11-2y)-7y=-6#

#33-6y-7y=-6#

#-13y=-6-33#

#-13y=-39#

#y=3#

We go back to second equation and use #y=3#

#x=11-2y" "#

#x=11-2(3)" "#

#x=5#

God bless....I hope the explanation is useful.